One of my best portraits make only with grayfite. in it I use 10 b pencil of camil brand for hairs, eyebrows and beard. then hb for the face. In the shirt I use 4b, 2b and hb. in coat I use 8b,6b and for the dark lines I use 10b. for the highlights I use Stadler eraser it was very bad for small highlight but very good in large highlight
If you want to se more interesting art works check the link